Aluminum EN AC-46200
EN AC-46200
EN AC-46200 (AlSi8Cu3, close to US 319.0) is an Al-Si-Cu casting alloy from the EN 1706 family, strengthened by about 3 % copper and available as sand (F-S), gravity die (F-K) and high-pressure die castings (F-D) as well as in T5, T6 and T7.
Reference datasheet — EN AC-46200 is not in the instant-quote catalog. Upload your part and an engineer will quote it in this grade or suggest the closest stocked equivalent.
Values for the F-K condition
EN AC-46200 tempers and conditions
EN AC-46200 is supplied in 6 conditions, soft to hard. F-K is the default FabDigit quotes; the values on this page are for it.
Compare all 6 conditionsHide
| Condition · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness | Conductivity |
|---|---|---|---|---|---|---|
F | Choose as-cast sand casting for one-offs, small batches or large complex geometries; the coarser structure gives 175 MPa tensile, below the permanent-mould route. | 105 | 175 | 1.5 | 70 HB | 27 % IACS |
F-KDefault F | Pick the standard as-cast chill (permanent mould) supply condition for lowest cost and good dimensional stability with no heat treatment; expect 200 MPa tensile and 1.5% elongation. | 120 | 200 | 1.5 | 80 HB | 27 % IACS |
F | Use as-cast high-pressure die casting for thin-wall parts, where rapid solidification refines the structure to 250 MPa tensile; internal porosity rules out solution heat treatment. | 150 | 250 | 1.5 | 90 HB | 29 % IACS |
Solution heat treated and overaged (stabilized) | Use solution treatment with overageing when dimensional and structural stability up to 200 °C outrank strength, as in engine parts under sustained heat; tensile drops to 230 MPa. | 155 | 230 | 3 | 80 HB | 30 % IACS |
Cooled from hot working and artificially aged | Pick artificial ageing without solution treatment to lift yield to 175 MPa and improve dimensional stability with low distortion risk, at lower cost than T6. | 175 | 215 | 1.5 | 85 HB | 28 % IACS |
Solution heat treated and artificially aged | Choose solution heat treatment plus artificial ageing for loaded castings needing 270 MPa tensile and 95 HB; limited to sand or permanent-mould parts, and watch solution distortion. | 185 | 270 | 2.5 | 95 HB | 29 % IACS |
What is EN AC-46200?
EN AC-46200 (AlSi8Cu3, close to US 319.0) is an Al-Si-Cu casting alloy from the EN 1706 family, strengthened by about 3 % copper and available as sand (F-S), gravity die (F-K) and high-pressure die castings (F-D) as well as in T5, T6 and T7. Engineers pick it for general-purpose automotive castings because of good fluidity, a machinability rating of 75 and balanced properties: 120 MPa yield, 200 MPa tensile, 1.5 % elongation, 80 HB, 110 W/m·K and service to 175 °C. The copper content lowers corrosion resistance and makes the alloy hot-crack sensitive, so fusion welding is a repair operation only and elongation stays low. Where higher as-cast strength from secondary metal is acceptable, EN AC-46500 is the usual alternative. EN AC-46200 has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 510°C (950 °F). EN AC-46200 has a yield strength of 120 MPa (17.4 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 77% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 75 GPa (10.9 Msi).
What is EN AC-46200 used for?
- housings
- pump bodies
- manifolds
Advantages
- Easy to machine — 75/100, better than 86% of aluminum grades
- High service temperature — 175°C (347 °F), better than 83% of aluminum grades
Limitations
- Limited formability — 5/100, worse than 94% of aluminum grades
- Limited ductility — 1.5%, worse than 91% of aluminum grades
- Hard to polish — 40/100, worse than 91% of aluminum grades
- Poor heat conductor — 110 W/m·K (63.6 BTU/hr·ft·°F), worse than 88% of aluminum grades
- Low electrical conductivity — 27 % IACS, worse than 86% of aluminum grades
EN AC-46200 properties
Typical room-temperature values for EN AC-46200-F-K; bars are the position among aluminum grades.
Physical3
EN AC-46200 has a density of 2.75 g/cm³ (0.0994 lb/in³), heavier than 67% of aluminum grades. It melts at 510°C (950 °F).
Mechanical13
EN AC-46200 has a yield strength of 120 MPa (17.4 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 77% of aluminum grades. Elongation at break is 1.5% and the elastic modulus is 75 GPa (10.9 Msi).
Thermal6
EN AC-46200 is rated for continuous service to 175°C (347 °F). It conducts heat at 110 W/m·K (63.6 BTU/hr·ft·°F), worse than 88% of aluminum grades. Thermal expansion is 21.5 µm/m·K (11.9 µin/in·°F).
Electrical3
EN AC-46200 conducts electricity at 27 % IACS, worse than 86% of aluminum grades.
Chemical & Environmental3
Corrosion resistance is fair (42/100), worse than 69% of aluminum grades.
Sustainability4
Producing a kilogram of EN AC-46200 takes about 190 MJ of energy and emits 11.5 kg of CO₂ — less than 89% of aluminum grades. Typical recycled content is 80%.
Manufacturability7
EN AC-46200's machinability is very good (75/100, better than 86% of aluminum grades); weldability poor (30/100); formability not recommended (5/100).
Common Calculations5
Values are nominal handbook figures for design screening. Certified mill or lot data ships with every FabDigit order on request.
Strength versus weight in the aluminum family
Yield strength against density for every aluminum grade FabDigit runs. EN AC-46200 is highlighted; hover a dot for its name, or open the interactive family chart.
Working with EN AC-46200
Is EN AC-46200 easy to machine?
Machinability is good and the copper phases help chip breaking, but the eutectic silicon is abrasive. Use PCD or diamond-coated tooling, or K-grade carbide, at high spindle speed with generous emulsion coolant.
Can EN AC-46200 be welded?
Copper makes the alloy hot-crack sensitive and fusion weldability is poor. For repairs use TIG with ER4145 (Al-Si-Cu) filler and 150–200 °C preheat; fusion welding is not recommended on structural castings.
Can EN AC-46200 be formed, bent or molded?
A casting alloy only: fluidity is excellent and hot-tearing tendency low, so sand, gravity die and high-pressure die casting all work. Control dissolved gas and apply Sr or Na modification with Ti-B grain refinement to improve elongation.
EN AC-46200 chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| Si | 7.5 – 9.5 | 8.5 |
| Cu | 2 – 3.5 | 2.8 |
| Femaximum; die casting usually runs higher to prevent soldering | ≤ 0.8 | |
| Mn | 0.15 – 0.65 | 0.35 |
| Mg | 0.05 – 0.55 | 0.25 |
| Ni | ≤ 0.35 | |
| Zn | ≤ 1.2 | |
| Pb | ≤ 0.25 | |
| Sn | ≤ 0.15 | |
| Ti | ≤ 0.25 | |
| Others (each)each other impurity | ≤ 0.05 | |
| Others (total)total of other impurities | ≤ 0.25 | |
| Al | balance |
What surface finishes work on EN AC-46200?
Suited to shot blasting, chromate or chromate-free conversion coating, powder coat and hard anodizing. Decorative anodizing comes out grey and uneven, and polishing is limited by the silicon phase.
Surface treatments FabDigit runs on aluminum parts — pick them in the quote configurator or call them out on the drawing. Each links to its datasheet in the surface-finish library (thickness, specs, call-out, material verdicts).
Organic Coating
Equivalent designations
Standards and trade names that resolve to Aluminum EN AC-46200 in FabDigit's catalog. Equivalence is nominal — check the exact specification when certification matters.
- EN / DIN / Werkstoff-Nr.
- AC-46200AlSi8Cu3
- Similar grades
- 319.0
How much does EN AC-46200 cost?
EN AC-46200 is a standard-cost aluminum ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
EN AC-46200 — frequently asked
What is EN AC-46200 used for?
EN AC-46200 is typically used for housings, pump bodies and manifolds. In short: best-machining Al-Si-Cu casting; general-purpose automotive alloy; heat-treatable to T7.
What is the yield strength of EN AC-46200?
EN AC-46200 has a typical yield strength of 120 MPa (17.4 ksi) and a tensile strength of 200 MPa (29 ksi) — weaker than 77% of aluminum grades. Strength varies by condition: see the 6 listed tempers.
Is EN AC-46200 easy to machine?
Yes — machinability is rated very good (75/100, better than 86% of aluminum grades). Machinability is good and the copper phases help chip breaking, but the eutectic silicon is abrasive. Use PCD or diamond-coated tooling, or K-grade carbide, at high spindle speed with generous emulsion coolant.
Can EN AC-46200 be welded?
Not readily — weldability is rated poor (30/100). Copper makes the alloy hot-crack sensitive and fusion weldability is poor. For repairs use TIG with ER4145 (Al-Si-Cu) filler and 150–200 °C preheat; fusion welding is not recommended on structural castings.
What surface finishes work on EN AC-46200?
Suited to shot blasting, chromate or chromate-free conversion coating, powder coat and hard anodizing. Decorative anodizing comes out grey and uneven, and polishing is limited by the silicon phase.
Can EN AC-46200 be formed, bent or molded?
A casting alloy only: fluidity is excellent and hot-tearing tendency low, so sand, gravity die and high-pressure die casting all work. Control dissolved gas and apply Sr or Na modification with Ti-B grain refinement to improve elongation.
What is the maximum service temperature of EN AC-46200?
EN AC-46200 is rated for continuous use to about 175°C (347 °F). Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between EN AC-46200 F-K and EN AC-46200-T6?
F-K is the default condition — pick the standard as-cast chill (permanent mould) supply condition for lowest cost and good dimensional stability with no heat treatment; expect 200 MPa tensile and 1.5% elongation. T6: choose solution heat treatment plus artificial ageing for loaded castings needing 270 MPa tensile and 95 HB; limited to sand or permanent-mould parts, and watch solution distortion. Yield strength is 120 MPa in F-K versus 185 MPa in T6.
How much does EN AC-46200 cost?
EN AC-46200 is a standard-cost aluminum ($$), cheaper than about 71% of the materials FabDigit quotes. Part price depends far more on geometry, tolerance and quantity than on the raw stock — upload a CAD file for a live quote.
Sources
- EN 1706 — Aluminium and aluminium alloys: castings, chemical composition and mechanical properties — CEN (2020)
- ASM Handbook Vol. 2 — Properties and Selection: Nonferrous Alloys (319.0 data) — ASM International (1990)
- ANSI H35.1 / AA Registration of Cast Aluminum Alloys — The Aluminum Association (2017)
- Foundry alloy datasheets (Al-Si-Cu casting alloys) — TRIMET / Rheinfelden Alloys (2021)
Property data is compiled from published supplier and standards handbooks and normalised for comparison; hardness values on non-Brinell scales are converted approximately for charting only. Manufacturability limits are FabDigit quote-engine defaults and may be relaxed by engineering review. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.